CVE-2025-62708

pypdf is a free and open-source pure-python PDF library. Prior to version 6.1.3, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the content stream of a page using the LZWDecode filter. This has been fixed in pypdf version 6.1.3.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/py-pdf/pypdf/commit/e51d07807ffcdaf18077b9486dadb3dc05b368da	Patch
https://github.com/py-pdf/pypdf/pull/3502	Patch
https://github.com/py-pdf/pypdf/releases/tag/6.1.3	Release Notes
https://github.com/py-pdf/pypdf/security/advisories/GHSA-jfx9-29x2-rv3j	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*

History

08 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) pypdf es una biblioteca PDF de Python puro, gratuita y de código abierto. Antes de la versión 6.1.3, un atacante que utiliza esta vulnerabilidad puede crear un PDF que provoca un gran uso de memoria. Esto requiere analizar el flujo de contenido de una página utilizando el filtro LZWDecode. Esto ha sido corregido en la versión 6.1.3 de pypdf.

Information

Published : 2025-10-22 22:15

Updated : 2026-10-08 11:10

NVD link : CVE-2025-62708

Mitre link : CVE-2025-62708

CVE.ORG link : CVE-2025-62708

JSON object : View

Products Affected

pypdf_project

pypdf

CWE

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

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